LTC4420

2

4420fa

For more information www.linear.com/LTC4420

ABSOLUTE MAXIMUM RATINGS

Terminal Voltages

V1, V2 ......................................................–15V to 24V

OUT ....................................................... –0.3V to 24V

OUT – V2 .................................................–24V to 39V

OUT – V1 .................................................–24V to 39V

Input Voltages

ADJ, CMP1, V2UV, V2TEST, V2DIS

(Note 3) ................................................ –0.3V to 24V

Output Voltages

CMPOUT1, GNDSW, V2OK (Note 3) ...... –0.3V to 24V

(Notes 1, 2)

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC4420CDD#PBF

LTC4420CDD#TRPBF

LGMR

12-Lead (3mm × 3mm) Plastic DFN

0°C to 70°C

LTC4420IDD#PBF

LTC4420IDD#TRPBF

LGMR

12-Lead (3mm × 3mm) Plastic DFN

–40°C to 85°C

LTC4420CMSE#PBF

LTC4420CMSE#TRPBF

4420

12-Lead Plastic Exposed Pad MSOP

0°C to 70°C

LTC4420IMSE#PBF

LTC4420IMSE#TRPBF

4420

12-Lead Plastic Exposed Pad MSOP

–40°C to 85°C

Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through

designated sales channels with #TRMPBF suffix.

l

denotes the specifications which apply over the full operating

TOP VIEW

13

GND

DD PACKAGE

12-LEAD (3mm

× 3mm) PLASTIC DFN

12

11

8

9

10

4

5

3

2

1

V2

V2DIS

V2UV

OUT

V2OK

GNDSW

V1

V2TEST

CMP1

ADJ

GND

CMPOUT1 6

7

EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB

1

2

3

4

5

6

V1

V2TEST

CMP1

ADJ

GND

CMPOUT1

12

11

10

9

8

7

V2

V2DIS

V2UV

OUT

V2OK

GNDSW

TOP VIEW

13

GND

MSE PACKAGE

12-LEAD PLASTIC MSOP

EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB

PIN CONFIGURATION

Pin Currents (Note 2)

ADJ, CMP1, V2UV, CMPOUT1, GNDSW.............–1mA

V2TEST, V2DIS, V2OK ......................................–1mA

Operating Ambient Temperature Range

LTC4420C................................................ 0°C to 70°C

LTC4420I .............................................–40°C to 85°C

Junction Temperature (Notes 4, 5)........................ 125°C

Storage Temperature Range .................. –65°C to 150°C

Lead Temperature (Soldering, 10 sec)

MSOP Package .................................................300°C

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage and Currents

V1, V2

Operating Voltage Range

l

1.8

18

V

V1 Current, V1 Powering OUT

V1 Current, V2 Powering OUT

V1 = 8.4V, V2 = 3.6V

l

l

3.6

500

6.3

800

µA

nA

ORDER INFORMATION http://www.linear.com/product/LTC4420#orderinfo